Tire.



L M. CLARK.

, TIRE.

APPLICATION FILED FEB. 20. 1915. RENEWED MAR. 10| 19165.v

vl ,1 85,481 Patented May 30, 1916.

W5@ @www JOSEPH ivi. CLARK, or HANronnwAsHINGToN.

TIRE.

Specification of Letters Patent.

Application led February 20, 1915, Serial No. 9,698. Renewed March 10,1916. Serial No. 83,412.

To all whom t may concern citizen of the United States, residing atHanford, in the county of Benton and State of lVashington, have inventednew and useful Improvements in Tires, of which the following is aspecification.

This invention relates to vehicle wheel tires, the object in view beingto provide a tire of novel construction applicable to any vehicle wheeland which embodies means for obtaining the requisite amount ofresiliency of the tread without the use of the ordinary pneumatic tubeor air cushion, thereby doing away with the more prevalent tire troublessuch as punctures, blow outs and the like.

With the above and other objects in view, the invention consists in thenovel construction, combination and arrangement of parts, as hereindescribed, illustrated and claimed.

In the accompanying drawings: Figure 1 is a side elevation partly insection of a portion of a tire embodying the present invention. Fig. 2is a cross section through the same on the line Q-Q of Fig. 1. Fig. 8 isa detail perspective view of one of the tread sections.

The tire contemplated in this invention comprises an annular framedesignated generally at A, said frame consisting of a plurality ofannular sections 1, said sections bearing a spaced relation to eachother. One series of bolts :2 passes transversely through the sections 1of the frame A and serves to tie said sections together, said sectionsbeing properly spaced in relation to each other by means of washers 3which are placed upon the bolts 2 between the sections 1 of the frame A.Another circular series of bolts 4 is inserted transversely through thesections 1 of the frame A adjacent to the inner surface of said frame asshown and j ournaled upon each bolt 11 is a pair of obliquely extendingarms 5. At their outer ends the arms 5 are provided with attachingportions 6 extending in angular relation to the arms proper and rivetedor otherwise secured to the inner face of one of a plurality of treadsupporting sections 7, the tread supporting sections collectivelyforming a sectional annular outer rim designated generally at B. Betweeneach tread supporting section 7 and the frame A there is interposed aplurality of cushioning springs 8 each section 7 being provided withspring Vtion to each other when vno AVholdingustiids 9 on its inner faceand the frame..v A-being also provided with corresponding spring:holding lstuds 10 on its outer face, .said studs serving to maintainthe cushioningl springs 8 in proper relation to the frame A and thetread supporting sections v7. The outer. series of bolts 2, in,-

connection with thev spacing washers 3 thereon, serves as means forlimiting the Patented May so, 191e.

outward lmovement of the arms 5 so as to properly position the treadsections in relaload is imposed thereon.A

As shown in Fig.- 3, each tread4 supporting section 7 is provided withopposite anges flanges 11=and` 12. The tread lblock is'provided withintersecting grooves 14 and 15 which leave projecting blocks 16 therebyvproviding for a good tractive'hold of each tread block on the roadsurface to prevent lateral skiddiiig and to enable the tire as a wholeto obtain the necessary grip on the road. In' order toniore securelyfasten the tread block in place, I provide a metal retainer 16 whichconforms generally to the shape of the intersecting grooves 14 and 15and an end space 17 left at the receiving end of the flanged treadsupporting section 7 Bolts or rivets 18 are inserted through theretainer 16 and the tread block as well as the tread holding section 7.Ordinarily, the tread block is composed of rubber or some fabric havingrubber embodied therein. When al tread block is worn out, the remnantthereof may be removed from its tread supportingv section and a newtread block substituted therefor. If desired, the tire as a whole may beincased in a suitable flexible covering.

The tread supporting sections 7 are composed of met-al of any suitablethickness which will resist puncture or injury and on account of thearrangement of supporting arms and cushioning springs, the treadsections are adapted to yield independently of each other as the load issuccessively imposed thereon inthe rotation of the wheel. In case of thebreakage of one or more of the cushioning springs 8, new springs may bereadily substituted therefor. lt will, of course, be understood alsothat the frame A may be of any desired width in accordance with thewidth of the tread required vided longitudinally into a plurality ofananother series of'bolts also passing trans-- versely through saidsect-ions, two circular series of. arms Journaled on t-he second seriesvof bolts and extending obliquely outward beyond the frame, arcuatetread sections fastenedto said arms and collectively forming an outersectional tread 'supporting rim encircling said frame, and cushioningsprings interposed between said tread sections and frame.

2. A tire comprising an annular frame dinular sections arranged inspaced relation to each other, spacing washers arranged between saidsections, one series of bolts passing transversely through said sectionsand said Washers and tying said sect-ions together and holding saidwashers in place, another series of bolts also passing transverselythrough said sections, two circular series of arms journaled on thesecond series of bolts and extending obliquely outward beyond the frame,arcuate tread sections fastened to` said arms and collectively formingan outer sectional tread supporting rim" encircling said frame, andcushioning springs interposed between said tread sections and frame, thefirst series of bolts forming stops for said arms when the treadsections are at the outer limit of their movement.

In testimony whereof I afiiX my signature in presence of two witnesses.

E. S.- ALEXANDER.

Copiers of this patent may be obtained for five cents each, byaddressing the Commissioner of ratents, Washington, D. C."

